André

A blank screen is usually the sign that something is wrong with the OpenGl settings. Try to launch from the command line with xflr5 -o 21 for a 2.1 context xflr5 -o 31 for a 3.1 context and finally xflr5 -o 41 for a 4.1 context which is the highest that macOS supports.

A blank screen is usually the sign that somthing is wrong with the OpenGl settings. Try to launch from the command line with xflr5 -o 21 for a 2.1 context xflr5 -o 31 for a 3.1 context and finally xflr5 -o 41 for a 4.1 context which is the highest that macOS supports.

In the Analysis/advanced settings, there is an option to store or not unconverged points "Store points outside the polar mesh". The option used to be activated by default, however I was unconfortable with the storage of potentially erroneous points, so the option is now deactivated by default. I recommend to keep it deactivated since the potential method reaches or even oversteps its limits near stall angles.

The PANE and CADD commands modify the panels and not the operating conditions. You should double check the Reynolds, Mach, NCrit and forced transitions settings in XFoil. In xflr5 the XFoil settings in are accessed in the menu "Analysis/XFoil advanced settings"

Xfoil has no settings. It comes with a documentation which explains various options which can be set once the program is launched. The convergence depends mostly on the foil's panelling which is set with the PANE and CADD commands.

Make sure that you are in the operating point view (F5) Click on the operating point in the left tree view, and activate the cross in the third column In the operating point view deactivate "Show current Operating Point only" Reset the scales (R)

flow5 horizontal tail volume coefficient bug

Not an xflr5 bug.